20503214211011 has 8 divisors (see below), whose sum is σ = 23506163568480. Its totient is φ = 17518744542528.

The previous prime is 20503214210887. The next prime is 20503214211157. The reversal of 20503214211011 is 11011241230502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20503214211011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20503214201011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4619919866 + ... + 4619924303.

It is an arithmetic number, because the mean of its divisors is an integer number (2938270446060).

Almost surely, 2^{20503214211011} is an apocalyptic number.

20503214211011 is a deficient number, since it is larger than the sum of its proper divisors (3002949357469).

20503214211011 is an equidigital number, since it uses as much as digits as its factorization.

20503214211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9239844493.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 20503214211011 its reverse (11011241230502), we get a palindrome (31514455441513).

The spelling of 20503214211011 in words is "twenty trillion, five hundred three billion, two hundred fourteen million, two hundred eleven thousand, eleven".